The UART message is
DDR: Error as SDRAM calibration failed.
### Error## Please RESET the board #######
And this boot up configuring DDR loops in failure
Stuck on step 4 of the "Very Basic Operation" of the Quick Start Guide
May I know which Quartus and SoC EDS version you are using?
And could you provide the full part number your Stratix 10 Device? Is it the L-tile or the H-tile version?
Which Quartus version are you using for the design?
Is the issue happening with cold or warm reset?
We had a similar issue in the past where the failure was due to SDRAM ECC + Cold reset. The delta between SOCEDS 18.0 and 18.1 is SDRAM ECC is enabled at 18.1 and this caused the issue with SDRAM calibration failures.
Could you please run a test and disable ECC disabled on the HPS-EMIF?
Hope this helps.